Re: [OctDev] Java/OpenGL-based graphics package for octave

[Michael Goffioul]

On 4/25/07, John W. Eaton <address@hidden> wrote:
> It seems unfortunate that there are multiple objects that have the
> same type ("line", "hggroup", etc) that are very similar but have
> slightly different property lists.  It seems it would have been better
> to have some property in the object that indicates its actual type
> rather than just setting "type" to the name of what is apparently a
> sort of base class for the object.

In Matlab, you can actually make a difference, because a line and
a baseline are objects from 2 different classes. A baseline is actually
an object of class "specgraph.baseline". So you can distinct it with
"isa". When dealing only with properties, the difference is harder to
make.
OTOH, using almost similar objects (from properties point of view)
has the advantage that code that works with line objects will also
work for baseline objects without any change.

Michael.